Question

Define excretion
a) Name the filtration unit present in the kidney

Answer 1

Answer:

Excretion is a process in which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. Excretion is an essential process in all forms of life.

a) Each kidney is made up of about a million filtering units called nephrons. Each nephron filters a small amount of blood. The nephron includes a filter called glomerulus, a tubule. The nephron includes a filter called the glomerulus, and tubule.

Explanation:

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Answer 2

Answer:

Each kidney is made up of about a million filtering units called nephrons. Each nephron filters a small amount of blood. The nephron includes a filter called glomerulus, a tubule. The nephron includes a filter called the glomerulus, and tubule.